Migraine Complete Notes: Pathophysiology, Symptoms, Triggers, CGRP, Triptans, Prevention & Treatment | Pharmacy Exam Important Notes, One-Liners, Drug Tricks, MCQs, FAQs & Previous Year Questions

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Migraine (आधा सिर दर्द) Complete Notes: Pathophysiology, Symptoms, Triggers, CGRP, Triptans, Prevention & Treatment | Pharmacy Exam Important Notes, One-Liners, Drug Tricks, MCQs, FAQs & Previous Year Questions

🧠 MIGRAINE (आधा सिर दर्द) –

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🌟 INTRODUCTION

Migraine एक chronic neurovascular disorder है जिसमें बार-बार severe headache attacks आते हैं। यह केवल साधारण सिर दर्द नहीं बल्कि पूरे nervous system की dysfunction disease है।

Migraine में: ✅ Brain hyperexcitable हो जाता है
✅ Trigeminal nerve activate होती है
✅ CGRP release होता है
✅ Blood vessels dilate होती हैं
✅ Inflammation और pain signaling बढ़ती है

इसी कारण: 🔹 throbbing headache
🔹 nausea
🔹 vomiting
🔹 photophobia
🔹 phonophobia
🔹 aura

जैसी symptoms होती हैं।

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🧠 MIGRAINE क्यों होता है? (PATHOPHYSIOLOGY)

1️⃣ Brain Hyperexcitability Theory

Migraine patient का brain सामान्य व्यक्ति से ज्यादा sensitive होता है।

⚡ इसका मतलब?

छोटे triggers भी migraine शुरू कर सकते हैं: ☀️ Bright light
😰 Stress
😴 Sleep loss
🍫 Chocolate
🍷 Alcohol
🍽️ Fasting

❓ ऐसा क्यों होता है?

Brain neurons में: 🔹 ion channel dysfunction
🔹 glutamate activity ↑
🔹 inhibitory GABA activity ↓

हो सकती है।

👉 Result: Brain जल्दी overstimulated हो जाता है।

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2️⃣ Cortical Spreading Depression (CSD)

⚡ Aura migraine का सबसे important mechanism।

📌 क्या होता है?

Brain cortex में electrical wave फैलती है।

पहले neurons excessively fire करते हैं → फिर depressed हो जाते हैं।

👁️ Aura क्यों होती है?

यदि visual cortex प्रभावित हो: ✨ flashing lights
⚡ zig-zag lines
⬛ blind spots

यदि sensory cortex प्रभावित हो: ✋ tingling
🫳 numbness

यदि speech area प्रभावित हो: 🗣️ speech difficulty

🎯 Important Point

Aura headache से पहले इसलिए होती है क्योंकि: पहले cortical dysfunction शुरू होती है → बाद में pain pathways activate होते हैं।

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3️⃣ Trigeminovascular System Activation

🧠 यह migraine pain का सबसे important mechanism है।

📌 Process

Trigeminial nerve activate
⬇️
Meningeal vessels stimulate
⬇️
Neuropeptides release

🧪 Important Neuropeptides

⭐ CGRP (Most Important)
⭐ Substance P
⭐ Neurokinin A

❓ CGRP इतना important क्यों?

CGRP: ✅ Powerful vasodilator है
✅ Inflammation बढ़ाता है
✅ Pain transmission बढ़ाता है

👉 इसलिए modern migraine therapy में CGRP target किया जाता है।

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4️⃣ Neurogenic Inflammation

CGRP release होने से: 🔥 vessel permeability बढ़ती है
🔥 inflammation होती है
🔥 pain receptors sensitized हो जाते हैं

❓ Throbbing pain क्यों?

Dilated arteries pulsate करती हैं
⬇️
Pain receptors बार-बार stimulate होते हैं
⬇️
Pulsatile headache होता है

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5️⃣ Central Sensitization

Repeated migraine attacks से brain pain centers over-sensitive हो जाते हैं।

📌 Result

☀️ light intolerable
🔊 sound intolerable
🤕 scalp touch painful

इसे Allodynia कहते हैं।

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⚠️ MIGRAINE TRIGGERS

Trigger Reason
😰 Stress cortisol fluctuation
😴 Sleep loss neuronal excitability ↑
🍽️ Fasting glucose fall
🍫 Chocolate tyramine
🍷 Alcohol vasodilation
👩 Menstruation estrogen withdrawal
☀️ Bright light sensory overstimulation
👃 Strong smell limbic activation

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🤒 MIGRAINE SYMPTOMS

🩺 Headache Features

✅ Unilateral
✅ Pulsatile
✅ Moderate to severe
✅ Activity से बढ़ता है

❓ Physical activity से क्यों बढ़ता है?

Exercise → vascular pulsation ↑
⬇️
Pain receptors ज्यादा stimulate होते हैं

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🤢 Associated Symptoms

🤮 Nausea/Vomiting क्यों?

Brainstem vomiting center activate होता है।

☀️ Photophobia क्यों?

Visual pathways hypersensitive हो जाते हैं।

🔊 Phonophobia क्यों?

Auditory pathways sensitized हो जाती हैं।

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⏳ PHASES OF MIGRAINE

1️⃣ Prodrome Phase

⏰ Hours to days before attack

Symptoms:

😴 fatigue
🍫 food craving
😡 mood changes
🥱 yawning

क्यों?

👉 Hypothalamic dysfunction

2️⃣ Aura Phase

⚡ Neurological symptoms

3️⃣ Headache Phase

🔥 Trigeminovascular activation dominant

4️⃣ Postdrome

🧠 “Migraine hangover”

Symptoms: 😵 fatigue
🧠 brain fog
😞 weakness

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💊 COMPLETE TREATMENT OF MIGRAINE

🎯 Treatment Goals

✅ Pain relief
✅ Recurrence prevention
✅ Disability reduction
✅ Better quality of life

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🚑 ACUTE MIGRAINE TREATMENT (STEPWISE)

🥇 STEP 1 — Lifestyle Correction

📌 क्यों जरूरी?

अगर trigger बना रहेगा तो attacks repeatedly होंगे।

✅ Important Lifestyle Advice

😴 Regular sleep
💧 Hydration
🍽️ No prolonged fasting
🧘 Stress control
☕ Excess caffeine avoid

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🥈 STEP 2 — Mild Migraine Treatment

💊 PARACETAMOL

Paracetamol

⚙️ Mechanism

Central prostaglandin synthesis कम करता है।

✅ Advantage

GI irritation कम।

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💊 NSAIDs

Examples

💊 Ibuprofen
💊 Naproxen
💊 Diclofenac
💊 Aspirin

⚙️ Mechanism

❓ NSAIDs migraine में effective क्यों?

Migraine में inflammatory mediators बढ़ते हैं।

NSAIDs: ✅ inflammation कम करते हैं
✅ pain signaling कम करते हैं

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📌 Drug Wise Detail

💊 Ibuprofen

⚡ Fast onset
➡️ Early migraine में useful

💊 Naproxen

⏳ Long half-life
➡️ Recurrence prevention में useful

💊 Diclofenac

🔥 Strong anti-inflammatory action

💊 Aspirin

📈 High dose migraine relief

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🥉 STEP 3 — Antiemetics

❓ क्यों जरूरी?

Migraine में gastric stasis होती है।

📌 Gastric stasis क्या?

🍽️ Stomach emptying slow हो जाती है।

⚠️ Result

🤢 nausea
🤮 vomiting
💊 medicines का absorption slow

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💊 Metoclopramide

Metoclopramide

⚙️ Mechanism

D2 receptor blocker

✅ Extra Benefit

🚀 Gastric emptying improve

➡️ Migraine medicines जल्दी absorb होती हैं।

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🏆 STEP 4 — TRIPTANS (MOST IMPORTANT)

💊 Examples

💊 Sumatriptan
💊 Rizatriptan
💊 Zolmitriptan
💊 Eletriptan
💊 Naratriptan

⚙️ Mechanism

🎯 Triptans कैसे काम करते हैं?

✅ Cranial vasoconstriction
✅ CGRP release कम
✅ Pain transmission suppress

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💊 Sumatriptan

Sumatriptan

⭐ क्यों famous?

⚡ Fast acting
💉 Injectable form available

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⚠️ Triptans कब avoid?

Disease Reason
❤️ CAD vasoconstriction
🧠 Stroke ischemia risk
📈 HTN BP increase
🦵 PVD blood flow decrease

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🆕 STEP 5 — GEPANTS

💊 Examples

💊 Ubrogepant
💊 Rimegepant
💊 Atogepant

⚙️ Mechanism

✅ Advantage

❌ Vasoconstriction नहीं करते

➡️ Heart disease patients में safer

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🆕 STEP 6 — DITANS

💊 Lasmiditan

⚙️ Mechanism

5HT1F agonist

✅ Benefit

Pain pathways suppress करता है बिना vasoconstriction के।

⚠️ Side Effects

😵 dizziness
😴 sedation

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⚠️ STEP 7 — ERGOT ALKALOIDS

💊 Drugs

💊 Ergotamine
💊 Dihydroergotamine

❌ आज कम use क्यों?

⚠️ severe nausea
⚠️ dangerous vasoconstriction
⚠️ unpredictable action

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🚨 EMERGENCY MIGRAINE MANAGEMENT

Severe Attack

💧 IV Fluids

➡️ dehydration correction

💉 IV Ketorolac

➡️ strong NSAID

💉 IV Metoclopramide

➡️ nausea + pain relief

💉 Magnesium Sulfate

➡️ aura migraine helpful

💉 Steroids

➡️ recurrence prevention

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🛡️ PREVENTIVE (PROPHYLACTIC) TREATMENT

📌 कब start करते हैं?

✅ ≥4 attacks/month
✅ Chronic migraine
✅ Severe disability
✅ Acute drugs ineffective

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🥇 FIRST LINE PREVENTIVE DRUGS

💊 1. Beta Blockers

Drugs

💊 Propranolol
💊 Metoprolol
💊 Timolol

💊 Propranolol

Propranolol

⚙️ Mechanism

✅ adrenergic activity ↓
✅ cortical excitability ↓

👤 Best Patient

😰 anxious young patient

⚠️ Side Effects

😴 fatigue
❤️ bradycardia
😞 depression

❌ Asthma में क्यों avoid?

β2 blockade → bronchoconstriction

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💊 2. Topiramate

Topiramate

⚙️ Mechanism

✅ sodium channel block
✅ glutamate inhibition
✅ GABA enhancement

➡️ Overexcited neurons calm होते हैं।

⚠️ Side Effects

Side Effect Reason
⚖️ Weight loss appetite suppression
🪨 Kidney stones carbonic anhydrase inhibition
🧠 Cognitive slowing CNS suppression

👤 Best Patient

⚖️ Obese migraine patient

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💊 3. Valproate

Valproate

⚙️ Mechanism

GABA ↑

⚠️ Side Effects

⚖️ weight gain
🤝 tremor
🧪 liver toxicity

❌ Pregnancy में क्यों dangerous?

👶 Neural tube defects

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💊 4. Amitriptyline

Amitriptyline

⚙️ Mechanism

Serotonin + norepinephrine ↑

👤 Best Patient

😞 Depression + insomnia + migraine

⚠️ Side Effects

💤 sedation
🌵 dry mouth
🚫 constipation

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🥈 SECOND LINE PREVENTIVE THERAPY

💊 Flunarizine

⚙️ Mechanism

Neuron calcium influx ↓

➡️ Hyperexcitable neurons calm होते हैं।

⚠️ Side Effects

⚖️ weight gain
😞 depression

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🧬 THIRD LINE — CGRP MONOCLONAL ANTIBODIES

💊 Drugs

💉 Erenumab
💉 Fremanezumab
💉 Galcanezumab
💉 Eptinezumab

🌟 ये revolutionary क्यों?

पहली बार migraine के exact mediator (CGRP) को target किया गया।

⚙️ Mechanism

✅ Benefits

💉 Monthly injection
🎯 Highly specific
⚠️ Less systemic side effects

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🔥 REFRACTORY MIGRAINE MANAGEMENT

अगर सब fail हो जाए

📌 Stepwise Approach

1️⃣ Diagnosis confirm
2️⃣ Medication overuse rule out
3️⃣ Lifestyle optimize
4️⃣ Preventive class switch
5️⃣ Combination therapy
6️⃣ CGRP antibodies
7️⃣ Botox
8️⃣ Neuromodulation

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💉 BOTOX

OnabotulinumtoxinA

⚙️ Mechanism

Pain neurotransmitter release कम

📌 कब देते हैं?

📅 ≥15 headache days/month

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⚠️ MEDICATION OVERUSE HEADACHE

❓ क्यों होता है?

Repeated painkiller use
⬇️
Brain pain pathways sensitized
⬇️
Chronic headache develop

⚠️ High Risk Drugs

💊 opioids
💊 triptans
💊 combination analgesics

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🤰 MIGRAINE IN PREGNANCY

✅ Safe

💊 Paracetamol

❌ Avoid

Drug Reason
💊 Valproate teratogenic
💊 Ergotamine uterine contraction
💊 NSAIDs late pregnancy fetal circulation issue

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🚨 STATUS MIGRAINOSUS

📌 Definition

Migraine >72 hr

⚠️ Dangerous क्यों?

💧 dehydration
😵 severe disability
💊 medication overuse risk

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🧠 IMPORTANT EXAM PEARLS

✅ Migraine = neurovascular disease
✅ CGRP = key mediator
✅ Aura due to cortical spreading depression
✅ Triptans = 5HT1B/1D agonists
✅ Topiramate causes weight loss
✅ Valproate teratogenic
✅ Botox for chronic migraine
✅ Medication overuse headache important complication

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📚 FINAL CONCLUSION

Migraine एक complex neurological disorder है जिसमें: 🧠 cortical hyperexcitability
🔥 trigeminal activation
🧪 CGRP release
⚡ neurogenic inflammation
🧬 serotonin dysregulation

मुख्य role play करते हैं।

🎯 Treatment हमेशा stepwise होता है:

1️⃣ Trigger avoidance
2️⃣ Acute attack treatment
3️⃣ Preventive therapy
4️⃣ Advanced biologic therapy
5️⃣ Refractory migraine management

⭐ Modern migraine treatment का सबसे बड़ा advancement: ➡️ CGRP targeted therapy है।


🧠 MIGRAINE — 

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📚 1. MIGRAINE OVERVIEW TABLE

Topic

Details

Disease Type

Chronic neurovascular neurological disorder

Main Problem

Recurrent episodic headache attacks

Main Pathology

Trigeminovascular activation + CGRP release

Key Neurotransmitter

Serotonin

Key Neuropeptide

CGRP

Most Common Age

Young adults

Female:Male Ratio

More common in females

Reason in Females

Estrogen fluctuation

Nature of Pain

Pulsatile/throbbing

Common Site

Unilateral (can be bilateral)

Duration

4–72 hours

Associated Symptoms

Nausea, vomiting, photophobia, phonophobia

Most Important Mechanism

Neurogenic inflammation

Aura Cause

Cortical spreading depression

Important Modern Therapy

Anti-CGRP drugs

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🧠 2. PATHOPHYSIOLOGY TABLE

Mechanism

What Happens

Why Important

Brain Hyperexcitability

Neurons become over-sensitive

Small triggers start attacks

Cortical Spreading Depression

Electrical wave spreads in cortex

Causes aura

Trigeminovascular Activation

Trigeminal nerve stimulated

Main pain pathway

CGRP Release

Vasodilation + inflammation

Central migraine mediator

Neurogenic Inflammation

Vessel permeability ↑

Pain worsens

Central Sensitization

Pain pathways overactive

Chronic migraine develops

Serotonin Dysfunction

Vascular tone altered

Triptans work here

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⚡ 3. AURA TABLE

Aura Type

Symptoms

Brain Area Involved

Visual Aura

Flashing lights, zig-zag lines

Visual cortex

Sensory Aura

Tingling, numbness

Sensory cortex

Speech Aura

Difficulty speaking

Speech area

Motor Aura

Weakness

Motor cortex

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🔥 4. MIGRAINE TRIGGERS TABLE

Trigger

Mechanism

Stress

Cortisol fluctuation

Sleep deprivation

Neuronal excitability ↑

Fasting

Glucose ↓

Chocolate

Tyramine

Cheese

Vasoactive amines

Alcohol

Vasodilation

Bright light

Sensory overstimulation

Loud sound

Auditory hypersensitivity

Menstruation

Estrogen withdrawal

Strong smell

Limbic stimulation

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🤒 5. CLINICAL FEATURES TABLE

Symptom

Reason

Pulsatile headache

Dilated pulsating vessels

Unilateral pain

Local trigeminal activation

Nausea

Brainstem vomiting center activation

Vomiting

Autonomic dysfunction

Photophobia

Visual pathway sensitization

Phonophobia

Auditory pathway sensitization

Worsens on activity

Increased vascular pulsation

Allodynia

Central sensitization

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⏳ 6. PHASES OF MIGRAINE TABLE

Phase

Symptoms

Mechanism

Prodrome

Fatigue, yawning, craving

Hypothalamic dysfunction

Aura

Visual/sensory symptoms

Cortical spreading depression

Headache

Severe throbbing pain

Trigeminovascular activation

Postdrome

Brain fog, tiredness

Residual neuronal dysfunction

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🚑 7. ACUTE MIGRAINE TREATMENT STEPWISE TABLE

Step

Drug/Class

Why Used

Step 1

Lifestyle correction

Trigger prevention

Step 2

Paracetamol/NSAIDs

Mild pain relief

Step 3

Antiemetics

Nausea + better absorption

Step 4

Triptans

Moderate-severe migraine

Step 5

Gepants

CGRP blockade

Step 6

Ditans

Pain pathway suppression

Step 7

Ergot alkaloids

Refractory migraine

Step 8

IV therapy

Severe emergency migraine

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💊 8. NSAIDs TABLE

Drug

Mechanism

Advantages

Side Effects

Ibuprofen

COX inhibition

Fast acting

Gastritis

Naproxen

COX inhibition

Long duration

GI irritation

Diclofenac

Strong anti-inflammatory

Potent relief

Gastric ulcer

Aspirin

Prostaglandin inhibition

Cheap

Bleeding risk

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🤢 9. ANTIEMETICS TABLE

Drug

Mechanism

Benefits

Side Effects

Metoclopramide

D2 blocker

Gastric emptying ↑

Extrapyramidal symptoms

Domperidone

Peripheral D2 blocker

Less CNS effects

QT prolongation

Prochlorperazine

Dopamine blockade

Severe nausea relief

Sedation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🏆 10. TRIPTANS TABLE (VERY IMPORTANT)

Drug

Special Feature

Route

Important Point

Sumatriptan

Fastest

Oral/SC/Nasal

Most used

Rizatriptan

Rapid oral absorption

Oral

Fast relief

Naratriptan

Long acting

Oral

Less recurrence

Zolmitriptan

Nasal form

Oral/Nasal

Good bioavailability

Eletriptan

Potent

Oral

Effective severe attacks

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚙️ 11. TRIPTAN MECHANISM TABLE

Action

Result

5HT1B activation

Vasoconstriction

5HT1D activation

CGRP release ↓

Trigeminal inhibition

Pain transmission ↓

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚠️ 12. TRIPTAN CONTRAINDICATIONS TABLE

Disease

Why Contraindicated

Coronary artery disease

Vasoconstriction

Stroke

Ischemia risk

Uncontrolled hypertension

BP increase

Peripheral vascular disease

Blood flow reduction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🆕 13. GEPANTS TABLE

Drug

Mechanism

Advantages

Ubrogepant

CGRP receptor blocker

No vasoconstriction

Rimegepant

CGRP blockade

Acute + preventive use

Atogepant

CGRP blockade

Prevention therapy

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🆕 14. DITANS TABLE

Drug

Mechanism

Important Feature

Lasmiditan

5HT1F agonist

No vasoconstriction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚠️ 15. ERGOT ALKALOIDS TABLE

Drug

Mechanism

Problem

Ergotamine

Serotonin agonist

Severe vasoconstriction

Dihydroergotamine

Mixed agonist

Nausea

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🚨 16. EMERGENCY MIGRAINE MANAGEMENT TABLE

Drug

Why Used

IV Fluids

Dehydration correction

IV Ketorolac

Strong pain relief

IV Metoclopramide

Nausea + gastric emptying

Magnesium sulfate

Aura migraine

Steroids

Recurrence prevention

DHE

Severe refractory migraine

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🛡️ 17. PREVENTIVE THERAPY INDICATIONS TABLE

Condition

Why Prevention Needed

≥4 attacks/month

Frequent disability

Chronic migraine

Long-term control

Severe attacks

Quality of life

Acute therapy failure

Poor symptom control

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🥇 18. FIRST LINE PREVENTIVE DRUGS TABLE

Drug

Mechanism

Best Patient

Major Side Effect

Propranolol

Adrenergic suppression

Anxiety patient

Bradycardia

Topiramate

GABA ↑, glutamate ↓

Obese patient

Weight loss

Valproate

GABA ↑

Severe migraine

Teratogenic

Amitriptyline

Serotonin ↑

Depression + insomnia

Sedation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💊 19. BETA BLOCKERS TABLE

Drug

Use

Avoid In

Propranolol

First-line prophylaxis

Asthma

Metoprolol

Prevention

Bradycardia

Timolol

Prevention

Heart block

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💊 20. TOPIRAMATE TABLE

Topiramate

Feature

Detail

Mechanism

Sodium channel block + GABA ↑

Major Use

Migraine prevention

Benefit

Weight loss

Side Effect

Cognitive slowing

Stone Formation Reason

Carbonic anhydrase inhibition

Best Patient

Obese migraine patient

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💊 21. VALPROATE TABLE

Valproate

Feature

Detail

Mechanism

GABA increase

Main Benefit

Strong prophylaxis

Major Side Effect

Weight gain

Dangerous In Pregnancy

Neural tube defects

Liver Toxicity

Possible

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💊 22. AMITRIPTYLINE TABLE

Amitriptyline

Feature

Detail

Mechanism

Serotonin + norepinephrine ↑

Best Patient

Migraine + depression

Major Benefit

Improves sleep

Side Effects

Dry mouth, constipation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🥈 23. SECOND LINE DRUGS TABLE

Drug

Mechanism

Side Effects

Flunarizine

Calcium influx ↓

Weight gain

Verapamil

Calcium channel block

Bradycardia

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🧬 24. CGRP MONOCLONAL ANTIBODIES TABLE

Drug

Target

Important Feature

Erenumab

CGRP receptor

Monthly injection

Fremanezumab

CGRP ligand

Chronic migraine

Galcanezumab

CGRP ligand

Preventive therapy

Eptinezumab

CGRP ligand

IV administration

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

💉 25. BOTOX TABLE

OnabotulinumtoxinA

Feature

Detail

Mechanism

Neurotransmitter release ↓

Use

Chronic migraine

Definition of Chronic Migraine

≥15 headache days/month

Major Benefit

Pain frequency reduction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

⚠️ 26. MEDICATION OVERUSE HEADACHE TABLE

Feature

Detail

Cause

Repeated analgesic use

Main Problem

Pain pathway sensitization

High Risk Drugs

Opioids, triptans

Treatment

Stop culprit drug

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🤰 27. MIGRAINE IN PREGNANCY TABLE

Drug

Status

Reason

Paracetamol

Safe

Minimal fetal risk

Valproate

Dangerous

Teratogenic

Ergotamine

Avoid

Uterine contraction

NSAIDs late pregnancy

Avoid

Fetal circulation issue

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🚨 28. STATUS MIGRAINOSUS TABLE

Feature

Detail

Definition

Migraine >72 hr

Danger

Severe dehydration

Treatment

IV fluids + antiemetics + NSAIDs + steroids

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

📚 29. HIGH-YIELD EXAM PEARLS TABLE

Point

Importance

Migraine = neurovascular disease

Most important concept

CGRP = key mediator

Modern therapy target

Aura due to CSD

Frequently asked

Triptans = 5HT1B/1D agonists

Very high yield

Topiramate causes weight loss

Classic MCQ

Valproate teratogenic

Important viva point

Botox for chronic migraine

Frequently asked

Medication overuse headache

Important complication

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🎯 30. COMPLETE STEPWISE FLOWCHART TABLE

Situation

Next Step

Mild migraine

NSAID/paracetamol

Nausea present

Add antiemetic

Severe migraine

Add triptan

Triptan contraindicated

Gepant/Ditan

Frequent attacks

Start prophylaxis

First prophylaxis failure

Switch class

Multiple drug failure

CGRP antibody

Chronic refractory migraine

Botox

Severe refractory disease

Neuromodulation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🧠 FINAL MASTER CONCLUSION TABLE

Core Concept

Summary

Main Disease Type

Neurovascular disorder

Key Mediator

CGRP

Main Pain Pathway

Trigeminovascular system

Aura Mechanism

Cortical spreading depression

First-Line Acute Therapy

NSAIDs + triptans

First-Line Prevention

Propranolol/topiramate

Modern Therapy

Anti-CGRP monoclonal antibodies

Chronic Migraine Therapy

Botox

Biggest Complication

Medication overuse headache

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━


📚 References  – Migraine

🌍 International Guidelines

🔹 International Headache Society (IHS)
https://ichd-3.org

🔹 American Headache Society (AHS)
https://americanheadachesociety.org

🔹 American Academy of Neurology (AAN)
https://www.aan.com

🔹 National Institute for Health and Care Excellence (NICE) Migraine Guideline
https://www.nice.org.uk/guidance/cg150

🔹 European Headache Federation (EHF)
https://ehf-org.org

📖 Standard Pharmacology Textbooks

🔹 Goodman & Gilman's The Pharmacological Basis of Therapeutics
https://accesspharmacy.mhmedical.com/book.aspx?bookid=2189

🔹 Katzung's Basic & Clinical Pharmacology
https://accessmedicine.mhmedical.com/book.aspx?bookid=3381

🔹 Rang & Dale's Pharmacology
https://www.elsevier.com/books/rang-and-dales-pharmacology

🔹 Harrison's Principles of Internal Medicine
https://accessmedicine.mhmedical.com/book.aspx?bookid=3095

🧠 Neurology & Migraine References

🔹 Merck Manual Professional Edition – Migraine
https://www.merckmanuals.com/professional

🔹 MSD Manual Consumer Version – Migraine
https://www.msdmanuals.com

🔹 Mayo Clinic – Migraine Overview
https://www.mayoclinic.org/diseases-conditions/migraine-headache

🔹 Cleveland Clinic – Migraine
https://my.clevelandclinic.org/health/diseases/5005-migraine-headaches

🔹 Johns Hopkins Medicine – Migraine Information
https://www.hopkinsmedicine.org/health/conditions-and-diseases/headache/migraine-headaches

🔬 Research Databases

🔹 PubMed
https://pubmed.ncbi.nlm.nih.gov

🔹 NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books

🔹 Cochrane Library
https://www.cochranelibrary.com

🔹 Google Scholar
https://scholar.google.com

💊 Drug Information References

🔹 Medscape Migraine Treatment
https://emedicine.medscape.com

🔹 Drugs.com
https://www.drugs.com

🔹 DailyMed (US FDA Drug Labels)
https://dailymed.nlm.nih.gov

🔹 FDA Approved Migraine Drugs
https://www.fda.gov